Reduced-size keyboards

Details Reduced-size keyboards Reduced-size keyboards

1999-09-10

2000-09-12

Ro, Bentsu

Music

Instruments

General features

84433, G01C 312

Patent

active

061180637

ABSTRACT:
In a reduced-size keyboard in a keyboard instrument, at least one apex of an angle in at least one key or bracing member is disposed at a different longitudinal position than any other apex in any key or bracing member.

REFERENCES:
patent: 442166 (1890-12-01), Boyes
patent: 722998 (1903-03-01), Mahr
patent: 3756113 (1973-09-01), Suzuki et al.
patent: 5847301 (1998-12-01), Steinbuhler

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